Which is not a part of a tracking history?

The correct answer is that visual estimation of target vehicle distance is not a part of a tracking history. Tracking history typically consists of objective measurements that relate directly to the recorded speed and movement of a target, such as speed estimation, tracking distance, and time calculations.

Speed estimation quantitatively determines how fast a target is moving based on radar or lidar data, capturing objective readings. Tracking distance involves measuring how far the target vehicle has traveled during the tracking event, providing concrete data for analysis. Time calculation is integral in determining the duration the target has been tracked, which is essential for confirming the accuracy of speed readings and the overall tracking process.

In contrast, visual estimation of target vehicle distance relies on the officer's perception and judgment, which can be subjective and less reliable than data gathered through electronic means. This subjective nature makes it unsuitable for inclusion in a definitive tracking history, which is intended to be based on precise and verifiable data.